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From "Todd Lipcon (Updated) (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (HDFS-2945) Allow NNThroughputBenchmark to stress IPC layer
Date Tue, 14 Feb 2012 04:44:59 GMT

     [ https://issues.apache.org/jira/browse/HDFS-2945?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Todd Lipcon updated HDFS-2945:
------------------------------

    Attachment: hdfs-2945.txt

I got this kinda sorta working, but it turned out to be a bit messier than I thought. I ended
up writing HADOOP-8070 (a generic IPC benchmark) instead. Here's the half-done patch in case
someone else wants to take this across the finish line
                
> Allow NNThroughputBenchmark to stress IPC layer
> -----------------------------------------------
>
>                 Key: HDFS-2945
>                 URL: https://issues.apache.org/jira/browse/HDFS-2945
>             Project: Hadoop HDFS
>          Issue Type: Improvement
>          Components: benchmarks
>    Affects Versions: 0.23.0
>            Reporter: Todd Lipcon
>            Assignee: Todd Lipcon
>         Attachments: hdfs-2945.txt
>
>
> Currently, the NNThroughputBenchmark acts only as a benchmark of the NN itself. It accesses
the NN directly rather than going via IPC. It would be nice to allow it to run in another
mode where all access goes through the IPC layer, so that changes in IPC serialization performance
can be repeatably/easily measured.

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